This problem is two fold. I have a lot of unwanted JPG's populating my new Photos library, like thousands, apparently from Apple. I also have the problem of the photos from the former iPhoto I used for years not populating the new Photo library. These problems started when the hard drive crashed on my former MacBook Pro, and I took it to Geek Squad and bought a new larger internal HDD. They were able to save the photos off of the old hard drive and used them to repopulate the iPhotos library. Somehow many hundreds, perhaps thousands of photos where then showing up in iPhoto when I clicked on it to view my pictures. I tried deleting them but they would seem to re-populate out of nowhere, perhaps the iCloud. Then the computer died, so I bought a new one. Again, they were able to repopulate the new Photo with the old photos from iPhone. But you guessed it, the unwanted stock images where there clogging up the works. The geek squad guy helped show me how to delete them, and we deleted all the unwanted photos together. Still no photos from the old iPhoto program. He tried telling me how to copy them across from the old iPhoto to the new Photo program that came with my new MacBook Pro. Now I don't even see the old iPhoto program ANYWHERE, and don't know where to find my thousands of old photos. The new Photo program is so crammed with the unwanted photos that it hardly works at all. SO, I need to delete all the old unwanted Apple Stock photos, icons, and JPG images and Photos from the Photo program, or library, and or the Cloud, so that it doesn't automatically and continually repopulate all of them into my Photo Library. I also need to find and have my former photos from the Older iPhoto program into the newer Photos program library. Some photos were saved into folders on the desktop, like in my old "Windows" days. I was told what a wonderful world it was to "trust" apple with automatically managing my photos, which I finally did under iPhoto before my first computer crash. I strongly regret doing that now, and I wonder what the hell ever possessed Apple to relegate all the photos under the iPhoto program to having to use that program, and not automatically have them populate the new Photo's Library. I also am upset that the iCloud, or something, is re-populating an error that the Geek Squad apparently did to me years ago. Please help!!!